Stropping-machine.



PATENTED AUG. 4, 1908.

J. LO RENZEN. STROPPING MACHINE. APPLICATION FILED SEPT. 29, 1906f UNITED sr rns PATENT "OFFICE.

JENS LOREN ZEN, OF FREMONT, OHIO, ASSIGNOR TO HENRIE OLAUSS, OF FREMONT, OHIO.

STROPPING-MAOHINE.

Specification. of Letters Patent.-

Applicationfiled September 29, 1906. Serial No. 336,761.

Patented Aug. 4, 1908.

' marked thereon, which form a part of this specification.

This invention relates to razor stropping devices, being an improvement upon the structure shown in my co-pending application, Serial No. 296,738, and consists in the construction and arrangement of parts hereinafter fully set forth and claimed.

The object of the invention is to roduce a razor stropping device of sim le an inexpensive construction, wherein te arrangement is such as to enable the razor blade to be held in an oscillatory holder and swung from side to side against the active portions of the strop as said strop is drawn back and forth over a roller which is oscillated by the movement of the strop and which imparts movement to the razor holder.

The above object is attained by the structure illustrated in the accompanying drawing, in which Figure 1 is a perspective view or a device involving my invention. Fig. 2 is an end elevation thereof, the bail by means of which it is supported when not in operation, being broken away. Fig. 3 is a sectional view as on line 33 of Fig. 1. Fi 4 is a view in perspective of the parts emp oyed for transmitting the oscillatory movement of the shaft or tube over which the strop asses, to the holder which carries the razor blade. Fig. 5 is a sectional view as on line 5-5 of Fig. 2. Fi 6 is a erspective view of the blade ho der and t e torsion spring which main tains it normally in a neutral position.

Referring to the characters of reference, 1 designates a suitable case which is preferably rectangular in shape. Crossing the interior of the casefrom end to end is a tubular roller or hollow shaft 2 which is journaled in the ends .of the case and over which asses the loo ed strop 3 whose end portions 'e in paralle relation and project from the bottom of the case, being provided with hand grips 4 for the purpose of manipulation. Also j ournaled in the ends of the case 3 between the hollow rock shaft 2 and the bottom of the case, is an oscillatory razor blade holder 5,

'made preferably of spring metal in tubular form, and rovided in one side thereof with a ta ering s 0t 6 having converging sides 7 a apted to clamp the razor blade when shoved into said tapering slot.

One end of the roller 2 and of the holder 5 provided with a transverse channel 8 in which is secured a crank arm 9, the projecting ends of which bear against the face of the end of the case and hold said roller and said holder from withdrawing therefrom. The working ends of the' cranks 9 project in opposite directions and are pivotally connected by a connecting bar 10. Passing through each of the crank arms into the end of their respective roller and blade holder, are the screws 11 which serve to retain said crank arms in lace, and which u on removal enable the ollow shaft and b ade holder to be removed from the casing. The opposite ends of the hollow shaft and blade holder are provided with the annular flanges 12 which engage the end of the'casing, and in conjunction with the crank arms 9 retain said shaft and holder against longitudinal movement.

By reason of connecting the roller and blade holder through the opposite ends of the crank arms 9, a reverse movement is transmitted from one to the other through the connecting bar.

To lace the razor blade 13 in position in the b ade holder, its back is entered in the ta ering opening 6 between the sides of said ho der and forced longitudinally thereof until fully entered between the spring sides 7 which clamp the opposite sides of the blade and retain it securely in position with its edge lying between the working portions of the strop. By drawing the strop longitudinally in opposite directions in reciprocal succession, the shaft 2 will be reciprocated and will impart a like movement .through the con-v necting bar- 10 to the blade holder, causing 'the blade to swing from side to side against the inner face of the stro the arrangement being such by reversingt e movement of the blade holder with res ect to'that of the shaft as to cause the bla e to swing against the wo'rking portion of the strop which is being side to side as the direction of movement of the strop is reversed, thereby perfectly stropping the edge of the blade. 7

To swing the edge of the blade away from the face of the strop at the termination of the longitudinal movement thereof in either direction, a torsional spring 14 is employed which is attached to the upper portion of the periphery of the blade holder at one end and which at the other end is provided with a loop 15 which engages in a slot 16 in the end of the case, whereby said spring is held from turning. As the blade holder is partially rotated in either direction, a torsional twist is imparted to said spring whose tension is exerted to normally return the blade holder to a neutral position, whereby upon a cessation of the movement of the .strop in either direction, the tension of said spring is exerted to carry the edge of the razor blade away from the strop, thereby preventing the strop being out at the instant of the change in the direction of its movement. The end of the case into which the razor is introduced is artially open to permit the blade to be freely entered in the holder.

A bail 17 is attached to the opposite sides of the case at the top and afiords means for holding the stropping device when in opera- 30 tion.

Having thus fully set forth my invention, what I claim as new and desire to secure by Letters Patent, is

In a stropping device, the combination with a suitable case, a roller journaled therein, a razor strop looped over the roller to cause its opposed portions to lie in parallel relation, a razor blade holder j ournalod in the case between the opposite sides ofsaidstrop,

said blade holder consisting of a slotted spring tube whose sides are adapted to engage the blade, and a spring secured at one end to the blade holder and extending longi tudinally thereof, said spring at the opposite 

